Sin
A rare surname that is most likely a short form or variant spelling rather than a single well-established family name.
The #8,797 most common surname in the United States (2010 Census) — about 1 in every 82,885 Americans shares it.
Etymology
The historical evidence for Sin as a surname is thin and mostly indirect. The clearest dictionary notice groups it with forms such as Siz and Simmons, suggesting it may be connected to a shortened or altered personal-name form rather than to the modern English word "sin." Because the excerpt is fragmentary, the exact root cannot be stated with confidence.
History
The name appears to have been treated by earlier surname writers as a rare variant or abbreviation, not as a common independent surname. Surviving records seem limited, and the available excerpt does not give enough detail to trace a secure geographic or social origin. In modern use it remains uncommon in the United States.
Origin
Regions
Variant spellings
Fun fact
The word itself is so short and ordinary that early surname scholars often had to decide whether it was a true surname root or just a shortened spelling of something longer.
From the historical record
“SIN 316 SIZ and Simmons. The name Seman is of very frequent occnrrence in the records of the Cinque Ports, and other places on the”
— Patronymica Britannica: a dictionary of the family names of the United Kingdom